CSES - Datatähti 2021 alku - Results
Submission details
Task:Alitaulukot
Sender:T
Submission time:2020-09-28 01:58:30 +0300
Language:Java
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.08 s1, 2, 3details
#20.10 s1, 2, 3details
#30.10 s1, 2, 3details
#40.11 s1, 2, 3details
#5ACCEPTED0.08 s1, 2, 3details
#6ACCEPTED0.10 s2, 3details
#70.12 s2, 3details
#80.12 s2, 3details
#90.13 s2, 3details
#10ACCEPTED0.10 s2, 3details
#110.25 s3details
#120.23 s3details
#130.24 s3details
#140.35 s3details
#150.31 s3details
#160.55 s3details
#170.29 s3details

Code

import java.util.*;
import java.io.*;
/**
* Datatahti 2021 alku
* Alitaulukot/Subtables
* @author TRS
*/
public class Alitaulukot {
//Constants
static final int infinity = 0x3f3f3f3f;
static final long linfinity = 0x3f3f3f3f3f3f3f3fL;
static final int MOD = 1000000007;
//Input
static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
static StringTokenizer st;
public static void main(String[] args) throws IOException {
int n = readInt();
int k = readInt();
int[] array = new int[n];
for (int i = 0; i < n; i++) {
array[i] = readInt();
}
System.out.println(solve(array, k));
}
static int solve(int[] array, int k) {
int answer = 0;
int i = 0;
int minimum = array[0];
int maximum = array[0];
List<Integer> ascend = new ArrayList<Integer>();
List<Integer> descend = new ArrayList<Integer>();
ascend.add(0);
descend.add(0);
for (int j = 1; j < array.length; j++) {
int value = array[j];
while (ascend.size() > 0 && array[ascend.get(ascend.size() - 1)] > value) {
ascend.remove(ascend.size() - 1);
}
while (descend.size() > 0 && array[descend.get(descend.size() - 1)] < value) {
descend.remove(descend.size() - 1);
}
ascend.add(j);
descend.add(j);
if (array[j] > maximum) {
maximum = array[j];
if (maximum - minimum > k) {
while (maximum - array[ascend.get(0)] > k) {
ascend.remove(0);
}
i = ascend.get(0);
minimum = array[i];
while (descend.get(0) < i) {
descend.remove(0);
}
}
}
else if (array[j] < minimum) {
minimum = array[j];
if (maximum - minimum > k) {
while (array[descend.get(0)] - minimum > k) {
ascend.remove(0);
}
i = descend.get(0);
maximum = array[i];
while (ascend.get(0) < i) {
ascend.remove(0);
}
}
}
answer += j - i + 1;
}
answer++;
return answer;
}
static String next() throws IOException {
while (st == null || !st.hasMoreTokens()) {
st = new StringTokenizer(br.readLine().trim());
}
return st.nextToken();
}
static long readLong() throws IOException {
return Long.parseLong(next());
}
static int readInt() throws IOException {
return Integer.parseInt(next());
}
static double readDouble() throws IOException {
return Double.parseDouble(next());
}
static char readCharacter() throws IOException {
return next().charAt(0);
}
static String readLine() throws IOException {
return br.readLine().trim();
}
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
100 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
5050

user output
5050

Test 2

Group: 1, 2, 3

Verdict:

input
100 2
5 5 2 4 3 5 3 4 3 2 3 4 5 4 4 ...

correct output
317

user output
(empty)

Error:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 0 out of bounds for...

Test 3

Group: 1, 2, 3

Verdict:

input
100 10
71 60 61 96 25 10 10 9 84 85 1...

correct output
119

user output
(empty)

Error:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 0 out of bounds for...

Test 4

Group: 1, 2, 3

Verdict:

input
100 990000000
111122929 961821360 578238211 ...

correct output
4006

user output
(empty)

Error:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 0 out of bounds for...

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
100 1000000000
553190572 453407680 667300705 ...

correct output
5050

user output
5050

Test 6

Group: 2, 3

Verdict: ACCEPTED

input
2000 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
2001000

user output
2001000

Test 7

Group: 2, 3

Verdict:

input
2000 2
4 4 1 4 2 3 1 2 1 3 5 2 2 4 4 ...

correct output
6340

user output
(empty)

Error:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 0 out of bounds for...

Test 8

Group: 2, 3

Verdict:

input
2000 10
65 88 33 88 41 10 17 38 22 3 8...

correct output
2413

user output
(empty)

Error:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 0 out of bounds for...

Test 9

Group: 2, 3

Verdict:

input
2000 999000000
746120950 772769620 721488968 ...

correct output
1287776

user output
(empty)

Error:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 0 out of bounds for...

Test 10

Group: 2, 3

Verdict: ACCEPTED

input
2000 1000000000
621947980 510355354 756705418 ...

correct output
2001000

user output
2001000

Test 11

Group: 3

Verdict:

input
100000 0
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
5000050000

user output
705082704

Test 12

Group: 3

Verdict:

input
100000 2
3 3 1 3 3 1 1 5 1 2 5 4 1 3 1 ...

correct output
317066

user output
(empty)

Error:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 0 out of bounds for...

Test 13

Group: 3

Verdict:

input
100000 10
10 3 6 3 43 60 5 48 15 27 86 4...

correct output
123292

user output
(empty)

Error:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 0 out of bounds for...

Test 14

Group: 3

Verdict:

input
100000 999990000
460235639 963048588 47270983 3...

correct output
4946886742

user output
(empty)

Error:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 0 out of bounds for...

Test 15

Group: 3

Verdict:

input
100000 1000000000
885457070 18257718 927615960 3...

correct output
5000050000

user output
705082704

Test 16

Group: 3

Verdict:

input
100000 50000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
3750075000

user output
-544892296

Test 17

Group: 3

Verdict:

input
100000 50000
100000 99999 99998 99997 99996...

correct output
3750075000

user output
(empty)

Error:
Exception in thread "main" java.lang.IndexOutOfBoundsException: Index 0 out of bounds for...